Improvement in sash-fasteners



WM; mi WMM N-PETERS. FHQTo-UmoGRAPHER. WASHINGTON. u. C.

UNITED STATES PATENT OEEICE.

VILLIAM M. VARREN AND CHARLES A. WARREN, OF WATERTOWN, CONN., ASSIGNORSTO THE WARREN MANUFACTURING COMPANY, OF THE SAME PLACE.

IMPROVEMENT IN SASH-FASTENERS.

Spcciication forming part of Letters Patent No. $1,596, dated December1, 1863.

To all whom it may concern:

- are applicable whether springs are used or not.

It consists of an improved arrangement of the locking-pin, whereby thesame is more readily actuated for unlocking the sash; also, of animproved detachable device for winding up the springs when springs areused for balancin g the sash.

Figure l represents a side elevation of a rack pinion and balancingspring as commonly used to which our improved locking device is applied.Fig. 2 represents a transverse sectional elevation of the same with ourimproved locking device attached. Fig. 3 represents an elevation of ourimproved winding device, and Fig. 4 represents a key for operating thewinding device.

Similar letters of reference indicate corresponding parts.

A represents a section of the window-frame or jamb, in which is inserteda common case, B, provided with a toothed pinion, C, which meshes into arack, D, secured to the windowsash.

E represents a spring, secured at one end to the case and at the otherto the pinion or its shaft, which is designed to balance the sash in theordinary way.

Frepresents alocking-pin, which is arranged to work through a tube, G,entering the casing from the front, and provided with the escutcheon H,and so arranged with reference to the pinion C that the end of the pin Fwill, after passing through the-side of the case, enter the spacesbetween the teeth, when, by the rotation ot' the said pinion, they arebrought coincident with the pin. A spring, I, is provided within thetube, and so arranged with reference to the pin as to bear it constantlyinw. rd and hold it in the position to lock the pinion.

The tube Gr is provided with two helical slots, K, opposite each other,which, at the ends nearest the casing, terminate' in short slots orrecesses L, inclined in the oppositedirection, and the pin Fis providedwith trunnions M, working in the said slots.

I/Vhen it is desired to unlock the pinion, the same may be accomplishedby simply taking hold of the knob' of the pin F and turning it in theright direction, the action of the trunnions M in the helical slotswithdrawing it as it turns by the action of the hand. When it has beenturned far enough for the trunnions to fall into the recesses L, by theaction of the spring the pin will be held in that position out ofcontact with the pinion, admitting the sash to be moved in eitherdirection, as desired.

To lock the pinion, the pin may, in a similar manner, be turned in theother direction until the trunnions have passed out of the recesses Linto the slots K, when the spring I will throw the pin back into thespaces between the teeth whenever they are moved to the point ofcoincidence with the same.

Instead ot' forming the slots or groovesK in the tube G, they may bemade in the pin F, and a pin projecting from the tube, so as to enterthe groovesin the pin, will serve the same purpose; and it is notnecessary to pro vide grooves on both sides of the tube or the pin.

Other arrangements of inclined planes may also be provided to effect thesame purpose.

We are aware that locking-pins have been used whenl a spring-actuatedpin has been provided with trunnions to work in grooves arrangedlongitudinally and transversely of the sleeve, in a manner similar to abayonetfastening; but this arrangement is objectionable, for the reasonthat it requires two movements of the hand on the pin to effect arelease of the latter from the lockin g-pinion and to secure the pin inits outward position against the action of the spring.

We are also aware that a spring-actuated,

pin has been used in combination with a pinion as a locking device whena series of holes has been made in the pinion for the pinY to lock into.B y our improved arrangement the expense of boring the said holes isavoided.

In Fig. 3 is represented our improved detachable winding apparatus, tobe used when, by the use of the balancing-springs E, it is necessary towind the pinions up against the springs to set them, so as to balancethe sash.

N represents a bearing or support4 for the pinion O, made in anysuitable form, and provided with the hook D and inclined pin Q., wherebyit may be readily attached to or detached from the face-plate R ofthecase B.

When the sash is removed, so as to hold the pinion O in gear with thepinion C, the axle of the pinion O is provided with a square keyhole,and a key, S, is tted to it, whereby it may, when the pin F iswithdrawn, be wound up to set the spring to any degree of tension andlocked in that position, when the winding device may be detached and thesash inserted.

The pinion O is provided with a spring-pawl, T, to hold it while beingwound.

By the use of a detachable winding device it is only necessary toprovide one apparatus for the use of all the windows of a house,whereas, when fixed winding devices are used, one must be provided forcach locking device. Another advantage of this arrangement is that whenthe winding is accomplished by -a pinion fixed in the case B and gearinginto an opening in the face of the windoweasing, and, in order to givethe proper finish, an escutcheon must be provided for the said opening.The position on the casing of the said escutcheon would be governed bythe axis of the pinion, and, in order to present the best appearance,the escntcheon for the lockingpin should be in the same vertical planewith that for the winding-key; but this cannot always be the case,inconsequence ofthe variation in the breadth ofthcface ofthe casings, and

some of the casings are made so narrow that, in

balancing-pinion for sash-fastening, of a detachable winding apparatus,with its hook D, pin '(Q, and frame, arranged as and for the purposedescribed.

The above specification of our invention signed by ns.

i/VM. M. VARREN. Vitnesses: CHAS. A. YVARREN.

GALnn T. HIOKOX, T. A. VARREN.

